MCQ
Which one of the following is not equivalent to $0.000000375?$
- A$3.75 \times 10^{-7}$
- ✓$3 \dfrac{3}{4} \times 10^{-7}$
- C$375 \times 10^{-9}$
- D$\dfrac{3}{8} \times 10^{-7}$
✓
Answer
Correct option: B.
$3 \dfrac{3}{4} \times 10^{-7}$
$0.000000375=375\times { 10 }^{ -9 }=3.75\times { 10 }^{ -7 }$
$=\cfrac { 375 }{ 100 } \times { 10 }^{ -7 }$
$=\cfrac { 15 }{ 4 } \times { 10 }^{ -7 }=3\cfrac { 3 }{ 4 } \times 10^7.$
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